View Full Version : NASA preps for Nail-biting Comet Flyby of Mars

2014-Jul-26, 04:40 PM
As Comet C/2013 A1 Siding Spring inches closer to the Red Planet,*NASA’s taking steps to protect its fleet of orbiting Mars spacecraft. On October 19, the comet’s icy nucleus will miss the planet by just*82,000 miles (132,000 km). That’s 17 times closer than the closest recorded Earth-approaching comet, Lexell’s Comet in 1770. No one’s worried […]

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